rumbling adj : continuous full and low-pitched throbbing sound; "the rumbling rolling sound of thunder" [syn: grumbling] n : a loud low dull continuous noise; "they heard the rumbling of thunder" [syn: rumble, grumble, grumbling]

English

Adjective

1. Deep and slow sounding.

   His rumbling voice fit the solemn occasion.

Noun

1. The sound of complaint.

   The rumblings of the masses precedes the crumbling of the state.

Verb

rumbling

boom, booming, cannonading, echo, echoic, echoing, fulminating, growl, growling, grumble, grumbling, lingering, pealing, persistent, reboant, reboation, rebound, rebounding, reecho, reechoing, repercussive, resound, resounding, reverberant, reverberating, reverberation, reverberatory, roaring, rolling, rumble, sounding, thunder, thundering, thunderlike, thunderous, thundery, tonitruant, tonitruous, undamped, volleying